Home / 124,738.64-172,131.27-68,149.97

Finding the Fourth Proportional to 124,738.64, 172,131.27 and 68,149.97

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Solution

The fourth proportional to 124,738.64, 172,131.27 and 68,149.97 is: 94,042.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,738.64 : 172,131.27 = 68,149.97 : x
  2. Step 2: Convert to fraction form
    124,738.64/172,131.27 = 68,149.97/x
  3. Step 3: Cross multiply
    124,738.64x = 172,131.27 × 68,149.97
  4. Step 4: Simplify right side
    124,738.64x = 11,730,740,886.56
  5. Step 5: Solve for x
    x = 11,730,740,886.56/124,738.64
  6. Step 6: Final answer
    x = 94,042.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.